TFA Dostmann COSY termo-higrometer, bel 30.5060.02.03

Monitor temperature and humidity with the TFA Dostmann COSY Thermo-Hygrometer, featuring a mechanical design that requires no batteries. Its analog display shows temperature from -10 to +50 °C and humidity from 0 to 100 % RH, with a comfort zone indicator for a healthy room climate.

Overview

The COSY combines a thermometer and hygrometer in a white plastic housing. It can be wall-mounted or freestanding, making it suitable for indoor use in living rooms, bedrooms, or offices.

What stands out

• Battery-free mechanical operation
• Comfort zone indicator for easy climate assessment
• Temperature accuracy of ±1 °C
• Humidity accuracy of ±5 % RH (40–75 % RH)
• Square, wall-mountable design

Technical details

• Display type: Analog
• Measurement functions: Temperature, humidity
• Temperature range: -10 to +50 °C
• Humidity range: 0 to 100 % RH
• Power source: Mechanical (no batteries required)
• Mounting: Wall-mountable, freestanding
• Material: Plastic
• Colour: White
• Application: Indoor use
• Product line: COSY

Our verdict

A reliable, low-maintenance choice for basic indoor climate monitoring without the need for power.